Toolsitz+

Tools · Calculators

Screen test

Full-screen white, black, grey, red, green and blue to find dead pixels, stuck pixels, backlight bleed, pressure marks and lines — then three questions that say whether it can be fixed. Free, in the browser, nothing installed. You get: what that spot, dot, line or tint on your screen is — and whether it can be fixed.

Full screen · white
Tap for the next colour · use the bar at the bottom to come back
On white
dark spots, pressure marks, lines
On black
bright dots, backlight bleed, glow
On red, green, blue
dead or stuck pixels, colour lines

Also under Calculators: Hex converter · Dead pixel test · Touch screen test · White screen · Black screen · What time is it

Press Start screen test, or type anything else you need.

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